Roll-spreading jack



April 2,1929. F, M, MORT N Q 1,707,870

ROLL SPREADING JACK Filed April 30. 1928 ym knees Mum Patented Apr. 2, 1929.

UNITED STATES FRANK M. MORTON, OF PHOENIX CITY, ALABAMA.

ROLLSPREADING JACK.

Application filed April 30, 1928. Serial No. 274,006.

In certain classes of machines, particularly textile machines for drawing, spinning and twisting yarns and the like, the drawing rolls are constructed of short sections tightly joined to each other by male and female coupling portions. For making repairs on one or more roll sections, it becomes necessary to disconnect them, and it is the object of my invention to provide an exceptionally simple and inexpensive, yet an efiicient and easily operable jack by means of which the tight connections between roll sections may be loosened and said sections readily disassembled.

l/Vith the foregoing in view, the invention resides in the novel subject matter herein- 7 after described and claimed, description being accomplished by reference to the accom panying drawing. V

Fig. 1 is a side elevation showing the jack in readiness for use in separating two drawing roll sections.

Fig. 2 is a vertical sectional view partly in elevation.

Fig. 3 is a transverse sectional View on line having a longitudinal bore 6 from one end to the other. Integral with one end of this body and projecting laterally therefrom, is a lug 7 having a notch 8 in its outer end. Slidable in the bore 6 and projecting beyond the aforesaid one end of said body, is a plunger 9 whose outer end is provided with an integral lug 10 projecting laterally in the same direction as the lug 7, the outer end of said lug it) being formed with a notch 11. Threaded into the end of. the bore 6, remote from the lugs 7-10, is a screw 12 whose head 13 is so shaped as to permit turning thereof with a wrench, thereby effecting projection of the plunger 9 and movement ofthe lug 10 away from the lug 7. Rigidly joined to the body in any desired manner, for instance, by threading it into a socket 14. therein, is a handle 15. This handle projects laterally from the body and is held in one hand to hold the body against rotation while the screw 12 is being turned with a wrench to project the plunger 9. I

The notches 811 receive the portion P of the roll shaft, between the roll portions R to be separated, and the lugs 710 abut the inner ends of said portions R. Thus, when screw 12 is operated to effect movement of lug away from lug 7, the male coupling portion M of one of the roll sections is withdrawn from the female coupling portion F of the other section. Thus, the roll-separating operation may be quickly and easily performed, the necessary repairs made, and the roll again assembled for use.

On account of the excellent results obtainable from the exact details disclosed, they are preferably followed. However, attention is again invited to the fact that within the scope of the invention as claimed, variations may be made.

I claim:

1. A roll. spreading jack comprising an elongated body having a bore from end to end, a lug rigidly secured to said body and projecting laterally from one end thereof, a plunger slidable in said bore and projecting beyond said one end of said body, a second lug rigid with said plunger and projecting therefrom in the same direction, as the first .named lug, a screw threaded into the end of said bore remote from said lugs, said screw abutting said plunger for projecting the same, and a handle projectingrigidly from said body for holding it against rotation while rotating said screw. 2. A 'roll spreading jack comprising an elongated body having a bore from end to end, a lug rigidly secured to said body and projecting laterally from one end thereof, a plunger slidable in said bore and projecting beyond said one end of said body, a second lug rigid with said plunger and projecting therefromin the same direction as the first named lug, the outer ends of said lugs having alined notches, a screw threaded into the end of said bore remote from said lugs, said screw abutting said plunger for projecting the same,.and a handle projecting rigidly from said body for holding it against rotation while rotating said screw.

In testimony whereof I have hereunto affixedmy signature.

FRANK M. MORTON. 

